Exploited vulnerability · CISA KEV

Is CVE-2017-0144 exploited? Yes: in CISA KEV since 10 Feb 2022

Gociux · Microsoft SMBv1 · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-0144, Microsoft SMBv1 Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 10 Feb 2022, 1791 days after it was published. It is known to be used in ransomware campaigns. It affects Microsoft SMBv1. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

The SMBv1 server in multiple Microsoft Windows versions allows remote attackers to execute arbitrary code via crafted packets.

What to do

1. Check whether you run it. Look for SMBv1 in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 17 Mar 2017.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in SMBv1

• CVE-2017-0145: Microsoft SMBv1 Remote Code Execution Vulnerability (10 Feb 2022)

References

• nvd.nist.gov/vuln/detail/CVE-2017-0144

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in February 2022 · Microsoft scorecard · act-now radar.